Manitowoc Q450 Manuel utilisateur

©Manitowoc Ice, Inc.

P/N 80-1099-9 8/03

Safety Notices

As you work on a Q Model Ice Machine, be sure to pay

close attention to the safety notices in this handbook.

Disregarding the notices may lead to serious injury

and/or damage to the ice machine.

Throughout this handbook, you will see the following

types of safety notices:

Procedural Notices

As you work on a Q Model Ice Machine, be sure to

read the procedural notices in this handbook. These

notices supply helpful information that may assist you

as you work.

Throughout this handbook, you will see the following

types of procedural notices:

NOTE: Text set off as a Note provides you with simple,

but useful extra information about the procedure you

are performing.

Warning

Text in a Warning box alerts you to a potential

personal injury situation. Be sure to read the

Warning statement before proceeding, and work

carefully.

Caution

Text in a Caution box alerts you to a potential

personal injury situation. Be sure to read the Caution

statement before proceeding, and work carefully.

Important

Text in an Important box provides you with

information that may help you perform a procedure

more efficiently. Disregarding this information will not

cause damage or injury, but may slow you down as

you work.

Read These Before Proceeding:

We reserve the right to make product improvements at

any time. Specifications and design are subject to

change without notice.

Caution

Proper installation, care and maintenance are

essential for maximum ice production and trouble

free operation of your Manitowoc Ice Machine. If you

encounter problems not covered by this manual, do

not proceed; contact Manitowoc Ice, Inc. We will be

happy to provide assistance.

Important

Routine adjustments and maintenance procedures

outlined in this manual are not covered by the

warranty.

Warning

PERSONAL INJURY POTENTIAL

Do not operate equipment that has been misused,

abused, neglected, damaged, or altered/modified

from that of original manufactured specifications.

Warning

PERSONAL INJURY POTENTIAL

The ice machine head section contains refrigerant

charge. Installation and brazing of the line sets must

be performed by a properly trained refrigeration

technician aware of the dangers of dealing with

refrigerant charged equipment. The technician

must also be U.S. Government Environmental

Protection Agency (EPA) certified in proper

refrigerant handling and servicing procedures.

Table of Contents

General Information

How to Read a Model Number.............................. 1

Ice Cube Sizes ...................................................... 1

Model/Serial Number Location .............................. 2

Ice Machine Warranty Information ........................ 2

Owner Warranty Registration Card .................. 2

Warranty Coverage .......................................... 3

Installation

Location of Ice Machine ........................................ 5

Ice Machine Head Section Clearance

Requirements........................................................ 5

Stacking Two Ice Machines on a

Single Storage Bin ................................................ 6

Calculating Remote Condenser

Installation Distances........................................ 7

Removal from Service/Winterization

General ............................................................... 11

Self-Contained Air-Cooled Ice Machines ............ 11

Water-Cooled Ice Machines................................ 11

Remote Ice Machines.......................................... 12

AuCS®Accessory............................................... 12

Ice Making Sequence of Operation

Self-Contained Air- and Water-Cooled................ 13

Initial Start-Up or Start-Up After

Automatic Shut-Off ......................................... 13

Freeze Sequence ........................................... 14

Harvest Sequence.......................................... 15

Automatic Shut-Off ......................................... 16

Energized Parts Chart .................................... 17

Remote................................................................ 19

Initial Start-Up or Start-Up After

Automatic Shut-Off ......................................... 19

Freeze Sequence ........................................... 20

Harvest Sequence.......................................... 21

Automatic Shut-Off ......................................... 21

Remote Energized Parts Chart....................... 22

Electrical System

Wiring Diagrams.................................................. 25

Wiring Diagram Legend.................................. 25

Q200/Q280/Q320 - Self Contained -

1 Phase With Terminal Board......................... 26

Q280/Q370 - Self Contained -

1 Phase Without Terminal Board.................... 27

Q320 - Self Contained -

1 Phase Without Terminal Board.................... 28

Q420/Q450/Q600/Q800/Q1000 - Self

Contained-

1 Phase With Terminal Board......................... 29

Q420/Q450/Q600/Q800/Q1000 - Self

Contained-

1 Phase Without Terminal Board.................... 30

Q800/Q1000 - Self Contained -

3 Phase With Terminal Board......................... 31

Q800/Q1000 - Self Contained -

3 Phase Without Terminal Board.................... 32

Q1300/Q1800 - Self Contained -

1 Phase With Terminal Board......................... 33

Q1300/Q1600/Q1800 - Self Contained -

1 Phase Without Terminal Board.................... 34

Q1300/Q1800 - Self Contained -

3 Phase With Terminal Board......................... 35

Q1300/Q1600/Q1800 - Self Contained -

3 Phase Without Terminal Board.................... 36

Q450/Q600/Q800/Q1000 - Remote -

1 Phase With Terminal Board......................... 37

Q450/Q600/Q800/Q1000 - Remote -

1 Phase Without Terminal Board.................... 38

Q800/Q1000 -Remote -

3 Phase With Terminal Board......................... 39

Q800/Q1000 - Remote -

3 Phase Without Terminal Board.................... 40

Q1300/Q1800 - Remote -

1 Phase With Terminal Board......................... 41

Q1300/Q1600/Q1800 - Remote -

1 Phase Without Terminal Board.................... 42

Q1300/Q1800 - Remote -

3 Phase With Terminal Board......................... 43

Q1300/Q1600/Q1800 - Remote -

3 Phase Without Terminal Board.................... 44

Component Specifications and

Diagnostics.......................................................... 45

General........................................................... 45

Safety Limits ................................................... 45

Inputs.............................................................. 45

Main Fuse....................................................... 46

Bin Switch....................................................... 47

Water Curtain Removal Notes........................ 49

ICE/OFF/CLEAN Toggle Switch..................... 50

Ice Thickness Probe (Harvest Initiation)......... 51

Ice Thickness Probe Diagnostics ................... 53

Diagnosing Ice Thickness Control Circuitry.... 54

Water Level Control Circuitry.......................... 56

Diagnosing an Ice Machine Head Section

that Will Not Run............................................. 63

Compressor Electrical Diagnostics................. 64

Diagnosing Capacitors ................................... 66

Refrigeration System

Refrigeration System Diagnostics ....................... 71

Before Beginning Service ............................... 71

Ice Production Check ..................................... 72

Installation/Visual Inspection Checklist........... 73

Water System Checklist ................................. 74

Ice Formation Pattern..................................... 75

Safety Limits................................................... 77

Analyzing Discharge Pressure ....................... 85

Analyzing Suction Pressure............................ 88

Single Expansion Valve Ice Machines -

Comparing Evaporator Inlet and

Outlet Temperatures....................................... 92

Discharge Line Temperature Analysis............ 96

How to Use the Refrigeration System

Operational Analysis Tables........................... 98

Refrigeration System Operational Analysis

Tables........................................................... 101

Pressure Control Specifications

and Diagnostics................................................. 108

Harvest Pressure Regulating (HPR) System

Remotes Only............................................... 108

Headmaster Control Valve ........................... 112

Fan Cycle Control

(Self-Contained Air-Cooled Models Only) .... 115

High Pressure Cutout (HPCO) Control......... 116

Refrigeration Tubing Schematics ...................... 117

Self-Contained Air- or

Water -Cooled Models.................................. 117

Remote Models ............................................ 118

Cycle Times/24-Hour Ice Production/

Refrigerant Pressure Charts.............................. 119

Q200 Series

Self-Contained Air-Cooled ......................... 120

Self-Contained Water-Cooled.................... 121

Q280 Series

Self-Contained Air-Cooled ......................... 122

Self-Contained Water-Cooled.................... 123

Q320 Series

Self-Contained Air-Cooled ......................... 124

Self-Contained Water-Cooled.................... 125

Q370 Series

Self-Contained Air-Cooled ......................... 126

Self-Contained Water-Cooled.................... 127

Q420/450 Series

Self-Contained Air-Cooled ......................... 128

Self-Contained Water-Cooled.................... 129

Remote ...................................................... 130

Q600 Series

Self-Contained Air-Cooled ......................... 131

Self-Contained Water-Cooled.................... 132

Remote ...................................................... 133

Q800 Series

Self-Contained Air-Cooled ......................... 134

Self-Contained Water-Cooled.................... 135

Remote ...................................................... 136

Q1000 Series

Self-Contained Air-Cooled ......................... 137

Self-Contained Water-Cooled.................... 138

Remote ...................................................... 139

Q1300 Series

Self-Contained Air-Cooled ......................... 140

Self-Contained Water-Cooled.................... 141

Remote ...................................................... 142

Q1600 Series

Self-Contained Water-Cooled.................... 143

Remote ..................................................... 144

Q1800 Series

Self-Contained Air-Cooled ......................... 145

Self-Contained Water-Cooled.................... 146

Remote ...................................................... 147

Refrigerant Recovery/Evacuation...................... 148

Normal Self-Contained Model Procedures... 148

Normal Remote Model Procedures .............. 152

System Contamination Clean-Up...................... 157

General......................................................... 157

Determining Severity Of Contamination ....... 157

Cleanup Procedure ...................................... 159

Replacing Pressure Controls Without Removing

Refrigerant Charge ....................................... 162

Filter-Driers................................................... 164

Total System Refrigerant Charge................. 165

Additional Refrigerant Charges ......................... 166

For Line Sets Between 50’ - 100’. ................ 166

THIS PAGE INTENTIONALLY LEFT BLANK

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